ALT-PU-2022-1589-2

Package update hiredis in branch sisyphus

Version1.0.2-alt1

Published2026-02-04

Max severityHIGH

Severity:

Closed issues (2)

HIGH8.8

Уязвимость функции calloc компонента RESP Handler клиента для взаимодействия с базами данных HIREDIS, позволяющая нарушителю получить доступ к конфиденциальным данным, нарушить их целостность, а также вызвать отказ в обслуживании

Published: 2025-04-10Modified: 2025-05-05

CVSS 3.xHIGH 8.8

CVSS:3.x/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS 2.0MEDIUM 6.5

CVSS:2.0/AV:N/AC:L/Au:S/C:P/I:P/A:P

References

CVE-2021-32765

HIGH8.8

Hiredis is a minimalistic C client library for the Redis database. In affected versions Hiredis is vulnurable to integer overflow if provided maliciously crafted or corrupted `RESP` `mult-bulk` protocol data. When parsing `multi-bulk` (array-like) replies, hiredis fails to check if `count * sizeof(redisReply*)` can be represented in `SIZE_MAX`. If it can not, and the `calloc()` call doesn't itself make this check, it would result in a short allocation and subsequent buffer overflow. Users of hiredis who are unable to update may set the [maxelements](https://github.com/redis/hiredis#reader-max-array-elements) context option to a value small enough that no overflow is possible.

Published: 2021-10-04Modified: 2024-11-21

CVSS 2.0MEDIUM 6.5

CVSS:2.0/AV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS 3.xHIGH 8.8

CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References